There is a grave problem of air pollution in India. In 2019, 21 of the 30 most polluted cities in the world were from
India. A study done in 2016 shows that at least 14 million people in India breathe air that is ten times over the WHO safe limit.
27% of pollution is spread by vehicles. There are more than when it comes to e-mobility, it is not just about electric vehicles.
Hybrid vehicles are being seen as a temporary way to fill the gap between conventional vehicles and EVs. since EV charging
infrastructure is still not created in India where, hybrid vehicles can make a difference in the short to medium term. There is dire
need to adopt HEVs in order to prevent an immense increase in climate change and limited natural resources on our planet.
This paper is focused on the review of the classification of the HEV powertrains based on hybrid vehicle configurations. The
advantages and disadvantages of serial, parallel, or power-split/series-parallel hybrids are also discussed.
